Intermittent Fasting Linked to Increased Cardiovascular Risk According to New Study

New research presented at the EPI|Lifestyle Scientific Sessions 2024 in Chicago has raised concerns about the health impacts of intermittent fasting, particularly the 16:8 method. This popular strategy, where individuals restrict eating to an eight-hour window, has been associated with a startling 91% increase in the risk of death from cardiovascular disease, according to a study analysing data from over 20,000 adults.

Study finds intermittent fasting causes higher risk of death by stroke and heart disease

Contrary to previous beliefs that intermittent fasting could improve metabolic health and aid in weight loss, the study's findings suggest potential risks associated with this eating pattern. Researchers found that those who practised the 16:8 intermittent fasting had a significantly higher likelihood of dying from heart disease and stroke compared to individuals who consumed their daily calories over a longer period, typically spanning 12 to 16 hours.

Lead researcher Victor Wenze Zhong expressed surprise at the results, stating, "We were surprised to find that people who followed an eight-hour, time-restricted eating schedule were more likely to die from cardiovascular disease." The study, while shedding light on potential risks, underscores the need for further research into the long-term effects of intermittent fasting on people’s health.

Experts caution against drawing conclusions from only one study

However, experts caution against drawing definitive conclusions from this study alone. Dr. Pam Taub, a cardiologist at UC San Diego Health, emphasised the need for more comprehensive investigations, highlighting that the current study relied on limited data and retrospective analysis.

While intermittent fasting remains popular for its short-term benefits such as weight loss and improved metabolic markers, individuals are advised to approach this dietary strategy cautiously, especially those with existing heart conditions or cancer. The study's findings underscore the importance of personalised dietary recommendations aligned with individual health statuses and supported by robust scientific evidence.